Shop by vehicle

My garage

OES Genuine Expansion Tank Cap & Accessories

"Wouldn't it be great if we can put an OES Genuine expansion tank cap over our eyes each time we cry? If the tear ducts are capped with such a device, people would spend a lot less time crying and there would be no more ‘crying yourself to sleep' moments at night. Just imagine-less drama, fewer tear-drenched pillows, and you can actually say goodbye to swollen, tear-stained eyes because the emotional flow of liquid would be kept to a minimum in order to keep your entire system from experiencing a heart-wrenching breakdown. But sadly, only cars are equipped with such a capping device-and only the overflow of your engine coolant can be minimized. If you can't stop yourself from breaking down and you can't obstruct the flow of tears from your eyes, well at least you can save your vehicle from a total meltdown and hinder the coolant from overflowing by placing an OES Genuine expansion tank cap inside your engine's cooling system.

The expansion tank, more commonly known as the coolant reservoir, efficiently provides the much needed additional space for the liquid coolant which is highly crucial to the performance of your vehicle's engine. Because of the coolant's properties, this liquid has a tendency to expand when heated. Of course, it is common knowledge that the engine's temperature builds up while the fuel and air mixture undergoes the combustion process. With this high level of temperature, pressure from the engine will force the radiator cap to push the coolant through a narrow tube which leads to the expansion tank. This way, the heated coolant is retained and no drop is wasted.

To keep this tank tightly closed and to prevent unwanted leakage, secure the storage system with an OES Genuine expansion tank cap. This device seals off the tank's opening to keep the fluid from trickling out of the vehicle. Even though the coolant is vital to the engine, this liquid is extremely dangerous when spilled on the road. Roaming animals may lick it off the pavement, and small children may accidentally come in contact with it while playing, so to avoid any unwanted consequences, it would be best if you'll choose only the best cap for the reservoir, specifically an OES Genuine expansion tank cap.

A defective expansion tank cap will render the entire reservoir useless since the heated coolant will just flow out of the vehicle freely. When you find out that the one under your hood has already reached the end of its service limit, replace it immediately before the problem worsens. If you don't have much time in your hands to look for a replacement, just visit Parts Train and you'll be able to choose from our vast online selection of automotive parts and accessories. A high quality OES Genuine expansion tank cap replacement is available in our catalog for a minimal price. You will certainly enjoy making a purchase from our website because of our excellent service, low price deals, and fast shipping.